Home / 4,991.04-6,889.86-3,200.40

Finding the Fourth Proportional to 4,991.04, 6,889.86 and 3,200.40

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Solution

The fourth proportional to 4,991.04, 6,889.86 and 3,200.40 is: 4,417.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,991.04 : 6,889.86 = 3,200.40 : x
  2. Step 2: Convert to fraction form
    4,991.04/6,889.86 = 3,200.40/x
  3. Step 3: Cross multiply
    4,991.04x = 6,889.86 × 3,200.40
  4. Step 4: Simplify right side
    4,991.04x = 22,050,307.94
  5. Step 5: Solve for x
    x = 22,050,307.94/4,991.04
  6. Step 6: Final answer
    x = 4,417.98

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.